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固定化Brucella sp.GXY-1降解苯酚的特性及其动力学研究

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Indexed by:期刊论文

Date of Publication:2008-09-15

Journal:辽宁师范大学学报(自然科学版)

Included Journals:ISTIC

Volume:31

Issue:3

Page Number:343-346

ISSN No.:1000-1735

Key Words:苯酚降解;固定化;布鲁氏杆菌;动力学

Abstract:利用大孔网状载体固定苯酚降解菌--布鲁氏杆菌(Brucella sp.)GXY-1菌株,并对固定化菌的制备条件及固定化菌降解苯酚的特性进行考察.结果表明,固定化菌株的最适温度为25~35℃,最适pH为7.0左右,摇床转速为150 r/min,最大耐盐度为2%,比游离态菌株更能适应环境变化.固定化菌降解苯酚的速率明显高于游离菌,降解过程符合Andrews抑制模型,确定了模型参数:qmax=2.932 h-1,Ks=286.227 mg/L,Ki=97.720 mg/L.

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